[SPECTEK] General Description: The 128Mb SDRAM is a high-speed CMOS, dynamic random-access memory containing 134,217,728 bits. Each is internally configured as a quad-bank DRAM. Read and write accesses to the SDRAM are burst oriented; accesses start at a selected location and continue for a programmed number of locations in a programmed sequence. Features: • Intel PC-100 (3-3-3) or PC133 (3-3-3) compatible • Fully synchronous; all signals registered on positive edge of system clock • Internal pipelined operation; column address can be changed every clock cycle • Internal banks for hiding row access precharge time • Programmable burst lengths: 1, 2, or 4 using Interleaved Burst Addressing • Auto Precharge and Auto Refresh modes • 64ms, 4,096-cycle refresh quad-row refresh, (15.6ms/row) • Self Refresh mode 1 • LVTTL-compatible inputs and outputs • Single +3.3V ±0.3V power supply • The x16 devices are optimized for both single and dual rank DIMM applications. The x8 devices are optimized for single rank DIMM applications.
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